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Drug interactions

Green tea + Oxazepam

Severity: Minor

Green tea and Oxazepam: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Green tea contains caffeine, which has stimulant properties and may partly offset the sedative and anxiolytic effects of oxazepam. The effect is usually small and depends on the amount of tea consumed.

What this interaction means in plain words

Green tea and Oxazepam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Green tea belongs to Gastrointestinal Tract; Oxazepam belongs to Central Nervous System.

Evidence level: Low

Why it happens

Pharmacodynamic antagonism through adenosine receptor blockade by caffeine.

What to do

No dose change is required; advise limiting large amounts of caffeinated tea if oxazepam seems less effective, especially near bedtime.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Green tea with Oxazepam?

MediHelp rates the interaction as minor. Green tea and Oxazepam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Green tea contains caffeine, which has stimulant properties and may partly offset the sedative and anxiolytic effects of oxazepam. The effect is usually small and depends on the amount of tea consumed.

How serious is the interaction between Green tea and Oxazepam?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No dose change is required; advise limiting large amounts of caffeinated tea if oxazepam seems less effective, especially near bedtime.

What other medicines interact with Oxazepam?

MediHelp also lists interactions of Oxazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Oxazepam page.

Full monographs, dosing and an interaction checker in the MediHelp app

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